--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/messagingappbase/smartmessaging/msgeditorutils/inc/MsgAsyncItemSaver.h	Thu Dec 17 08:44:11 2009 +0200
@@ -0,0 +1,125 @@
+/*
+* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  
+*     This is a base class for implementing asyncronous item saving.
+*
+*/
+
+
+
+#ifndef CMSGASYNCITEMSAVER_H
+#define CMSGASYNCITEMSAVER_H
+
+// INCLUDES
+
+#include <e32base.h>
+ 
+// CLASS DECLARATION
+
+/**
+* Interface for implementing the asyncronous saving operations.
+*/
+class MMsgAsyncItemSaver
+    {
+
+    public:
+        
+        /**
+        * Checks the status of the operation.
+        * @return ETrue if the operation can be completed, EFalse
+        * if the operation should continue.
+        */
+        virtual TBool IsComplete() const = 0;
+        
+        /**
+        * Perform some operations and set the inner state.
+        * If this leaves then RunError will be called with the
+        * leave code.
+        */
+        virtual void ContinueOperationL() = 0;
+
+        /**
+        * This method is called after IsComplete() has return ETrue.
+        * This method should result deleting the saver object.
+        */
+        virtual void CompleteOperationL() = 0;
+
+        /**
+        * Error handling method. If a leave occurs in ContinueOperationL
+        * then this method will be called with the leave code.
+        * @param aError Error code from the leave.
+        * @return Error code or KErrNone if error doesn't need to be
+        * handled. Returning KErrNone will continue the operation.
+        */
+        virtual TInt HandleError( TInt aError ) = 0;
+    };
+
+/**
+* This class implements the asyncronous framework for item saving.
+*/
+class CMsgAsyncItemSaver : public CActive
+    {
+    public: 
+
+        /**
+        * Constructor.
+        */
+        IMPORT_C CMsgAsyncItemSaver();
+        
+        /**
+        * Destructor.
+        */  
+        IMPORT_C ~CMsgAsyncItemSaver();
+
+        /**
+         * Call this when the operation is ready to start executing.
+         * Ownership of aItemSaver is not taken.
+         * @param aItemSaver asyncronous item saver
+         */
+        IMPORT_C void StartOperation( MMsgAsyncItemSaver* aItemSaver );
+
+		/**
+		* @param aMicroseconds time to pause. By default pauses indefinitely.
+		*/
+		IMPORT_C void Pause( TInt aMicroSeconds = 0 );
+
+		IMPORT_C void Continue();
+
+    protected: // from CActive
+
+        void RunL();
+        void DoCancel();
+	    TInt RunError(TInt aError);
+
+    private: // Own
+        
+        /**
+        * Execute the next loop.
+        */
+        void NextStep();
+    
+    private:
+
+        /// Reference to the operation specific item saver.
+        MMsgAsyncItemSaver* iItemSaver;
+
+		/// Saver activity state.
+		TBool iPaused;
+		RTimer iTimer;
+		TInt iPauseDelay;
+    };
+
+#endif // CMSGASYNCITEMSAVER_H
+
+// End of file